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Gray/Portland, ME Local Forecast Office

14NM NE Portsmouth NH

Marine Point Forecast

[NOTICE]

Today
High: 82 °F
Light Wind
3ft
Tonight
Low: 64 °F
Light Wind
2-3ft
Saturday
High: 78 °F
Light Wind
2ft
Saturday Night
Low: 63 °F
Light Wind
2ft
Sunday
High: 78 °F
Light Wind
1-2ft
Sunday Night
Low: 63 °F
Light Wind
1ft
Monday
High: 81 °F
⇑S 10kt
1ft
Monday Night
Low: 68 °F
SW 10kt
2ft
Tuesday
High: 87 °F
SW 10kt
2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:56 am EDT Jul 10, 2026
Forecast Valid: 11am EDT Jul 10, 2026-6pm EDT Jul 16, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds 5 kt or less. A slight chance of showers between 1pm and 2pm, then a slight chance of showers and thunderstorms after 2pm. Seas around 3 ft.

Tonight

Variable winds 5 kt or less. Mostly cloudy, then gradually becoming mostly clear. Seas 2 to 3 ft.

Saturday

Variable winds 5 kt or less. Sunny. Seas around 2 ft.

Saturday Night

Variable winds 5 kt or less. Mostly clear. Seas around 2 ft.

Sunday

Variable winds 5 kt or less. Sunny. Seas 1 to 2 ft.

Sunday Night

Variable winds 5 kt or less. Mostly clear. Seas around 1 ft.

Monday

SW wind 5 to 8 kt becoming S 7 to 10 kt in the afternoon. Sunny. Seas around 1 ft.

Monday Night

SW wind 5 to 10 kt. Partly cloudy. Seas around 2 ft.

Tuesday

SW wind 5 to 10 kt. Sunny. Seas around 2 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.